Home / 19,636.40-29,454.60-10,272.80

Finding the Fourth Proportional to 19,636.40, 29,454.60 and 10,272.80

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Solution

The fourth proportional to 19,636.40, 29,454.60 and 10,272.80 is: 15,409.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,636.40 : 29,454.60 = 10,272.80 : x
  2. Step 2: Convert to fraction form
    19,636.40/29,454.60 = 10,272.80/x
  3. Step 3: Cross multiply
    19,636.40x = 29,454.60 × 10,272.80
  4. Step 4: Simplify right side
    19,636.40x = 302,581,214.88
  5. Step 5: Solve for x
    x = 302,581,214.88/19,636.40
  6. Step 6: Final answer
    x = 15,409.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.